{"id":9446,"date":"2022-02-03T17:48:08","date_gmt":"2022-02-03T17:48:08","guid":{"rendered":"https:\/\/mailinvest.blog\/index.php\/2022\/02\/03\/the-next-generation-of-lie-detector-tests-has-arrived\/"},"modified":"2022-02-03T17:48:08","modified_gmt":"2022-02-03T17:48:08","slug":"the-next-generation-of-lie-detector-tests-has-arrived","status":"publish","type":"post","link":"https:\/\/mailinvest.blog\/index.php\/2022\/02\/03\/the-next-generation-of-lie-detector-tests-has-arrived\/","title":{"rendered":"The Next Generation of Lie Detector Tests Has Arrived"},"content":{"rendered":"

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Professor Hanein preparing BBC reporter Natalie Lisbona for her lie detection test. (Photo: Tomer Neuberg\/BBC)<\/small><\/center>Researchers in Israel have developed technology that may someday replace the \u201clie detector\u201d tests we know today.\u00a0<\/span><\/p>\n

Professor Yael Hanein, an electrical engineer and nanotechnologist at Tel Aviv University, has worked with colleague Professor Dino Levy, a psychobiologist, to create a lie detector system that uses a test subject\u2019s microexpressions to determine the truthfulness of a statement. Using electrodes attached to the subject\u2019s face, the test looks for involuntary eyebrow and lip movements\u2014two signs that Hanein and her colleague say occur with a majority of liars.\u00a0<\/span><\/p>\n

\u201cIt\u2019s very, very hard for you to conceal a lie with this technology,\u201d Hanein <\/span>told<\/span><\/a> the BBC.<\/span><\/p>\n

The concept of the lie detector test has been around for centuries, but the method we know today is at least 80 years old. The type of test we currently rely on uses a psychogalvanometer to detect autonomic activation of sweat glands in the skin, as well as a pneumograph that identifies thoracic movements (AKA changes in the subject\u2019s breathing). The test administrator then uses what\u2019s called the Reid Control Question Technique to ask questions that are <\/span>designed<\/span><\/a> to be \u201cemotionally arousing for truthful subjects and less emotionally arousing for deceptive subjects.\u201d Virtually the only improvement the modern polygraph has received since its invention in 1938 is the addition of computers, which now record and help analyze the subject\u2019s physiological data as it comes in.\u00a0<\/span><\/p>\n

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The polygraph test we know today. (Photo: Sherkiya Wedgeworth\/Wikimedia Commons)<\/p>\n<\/div>\n

Hanein and Levy say their new software and its companion algorithm can detect 73 percent of lies\u2014a statistic they hope to improve upon as they continue to develop the system. While not exactly foolproof, their technology certainly seems to hold more promise than what law enforcement agencies and private entities use today, which typically has about a 55 percent <\/span>success rate<\/span><\/a>.\u00a0<\/span><\/p>\n

This raises a question I\u2019m certainly not the first to ask: how realistic (or ethical, even) is it to consider polygraphs to be reliable methods of lie detection? With a relatively low success rate, many would consider it unfair to use polygraph results to dismiss one from job candidacy or prove one guilty in the courtroom. Though the United States allows employers to do the former\u2014something the United Kingdom does not allow\u2014polygraph results are considered inadmissible in US courts. And outside of employment or the legal system, where else would polygraphs be relevant?\u00a0<\/span><\/p>\n

Hanein and Levy told the BBC that they hope their technology will someday utilize video cameras instead of electrodes and be able to spot liars from a greater distance. \u201cIn the bank, in police interrogations, at the airport or online job interviews, high-resolution cameras trained to identify movements of facial muscles will be able to tell truthful statements from lies,\u201d Levy said. So, uh, that\u2019s where.<\/span><\/p>\n

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